Proceedings of Symposium on Remote Sensing and Photo Interpretation: Proceedings of Symposium on Remote Sensing and Photo Interpretation

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Multivolume work

Persistent identifier:: 842147969

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 842147969

Language:: German

Other Title:: Nebentitel: Proceedings : Symposium on Remote Sensing and Photo Interpretation

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Document type:: Multivolume work

Volume

Persistent identifier:: 842148353

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Scope:: VII Seiten, Seiten 469 - 878

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 842148353

Illustration:: Illustrationen, Diagramme, Karten

Signature of the source:: T 15 B 1306

Language:: German

Additional Notes:: Literaturangaben

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2015

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: INTERPRETATION AND ANALYSIS CHAIRMEN. - M. A. FONTANEL - G. HILDEBRANDT

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: ADVANCES IN AUTOMATIC EXTRACTION OF INFORMATION FROM MULTISPECTRAL SCANNER DATA. Jon D. Erickson

Document type:: Multivolume work

Structure type:: Chapter

inadequate. The Multivariate Interactive Digital Analysis System (MIDAS) system is an attempt to solve the problem of real time multispectral data processing in an operational system. We have been aware of this problem since the initial design and operation of the M-7 scanner and processing equipment at ERIM over 10 years ago. A real-time processor (SPARC - SPectral Analysis and Recognition Computer) was completed in 1967, allowing parallel decision operations using a multivariate maximum likelihood algorithm thus making possible for the first time, rapid processing of 12-band data (Kriegler, 1968). It was evident that a considerable amount of assistance and time was needed by the user in setting up such a machine and controlling its operation. This led to the evaluation of a hybrid system employing a general-purpose digital computer for control by the user of the system (Marshall,1973). Processing ofL remotely sensed data is an interactive process in which the man and machine must, in fact, be considered as the real processing system. This is not apparent in general purpose computer processing systems using software classifiers since the machine is so slow by comparison to parallel digital approaches that an operator is easily able to keep pace with the task (hours or days is the normal time interval). In this MIDAS system, where the parallel-pipeline digital processor is substantially faster, the time required by an operator is three or four times longer than that used in processing. Increases in processor speed will then provide little improvement in throughput. It becomes evident that well designed, interactive display and control subsystems will, in reality, offer the greatest gains in throughput. From another point of view, the objective of providing greater speed also provides much lower cost. This is true directly for the operational situation but also for research and development. It has been estimated that processing costs in an operational system can be reduced by about a factor of twenty or more from some present day feasibility processing costs. Costs may be determined by the time required for training. For ERTS costs as low as $500/frame may be possible. MIDAS represents a breakthrough in the field of multispectral scanner image analysis by providing a low-cost capability for user-oriented, interactive, near-real-time, digital analysis to produce thematic mapping with instantaneous or multi-temporal data. MIDAS accepts data from aircraft or spacecraft MSS in the form of high-density digital instrumentation tape, computer-compatible tape, or analog tape, and makes use of proven multispectral processing techniques (including signature extension feature extraction) within an innovative hardware approach resulting in a cost-effective, user-controlled system for multispectral analysis and recognition. Its hardware and software are intended to require a minimum amount of instructional training for successful operation. MIDAS is intended to provide multispectral analysis for applications in disciplines such as agriculture, urban planning, forestry, geology, pollution detection, hydrology, and others. Features may be extracted that are spectral, spatial, temporal, and (possibly) polarization-dependent, thus giving a very general and powerful capability.

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fullscreen: Proceedings of Symposium on Remote Sensing and Photo Interpretation (Volume 2)

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